# FitterAI vs PRed

The clearest difference is in-app purchases: FitterAI at none against PRed's 2. FitterAI also leads on update cadence (weekly vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. PRed sells 2 in-app purchases, starting at $8.99 per month. FitterAI asks for nothing beyond the download.

FitterAI ships an update weekly, PRed every 3 weeks. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | FitterAI | PRed |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 3 weeks |
| Size | 29 MB | 51 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [SUNGHWAN PARK](https://appshunter.io/developer/1872329563) | [haehoon seo](https://appshunter.io/developer/1889129994) |

## What reviewers say

### FitterAI

[App page](https://appshunter.io/ios/app/fitterai/id6758332449)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### PRed

[App page](https://appshunter.io/ios/app/pred-ai-workout-log/id6761363197)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PRed Pro Monthly | $8.99 | per month |
| PRed Pro Yearly | $69.99 | per year |


## Frequently asked questions

### Is FitterAI free?

FitterAI is free to download, with no in-app purchases.

### Is PRed free?

PRed is free to download, with in-app purchases available.

### Do FitterAI or PRed have ads?

Neither FitterAI nor PRed shows ads.

### Which is updated more often, FitterAI or PRed?

FitterAI ships an update weekly, and PRed every 3 weeks. Most recently, FitterAI was updated on October 25, 2026 and PRed on October 24, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*